DC/DC converter

Details DC/DC converter DC/DC converter

2007-01-19

2010-10-26

Sterrett, Jeffrey L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S271000, C363S056040

Reexamination Certificate

active

07821243

ABSTRACT:
In a non-isolated DC/DC converter, a reference potential for a low-side pre-driver which drives a gate of a low-side MOSFET is applied from a portion except for a main circuit passing through a high-side MOSFET and the low-side MOSFET so that a parasitic inductance between a source of the low-side MOSFET and the pre-driver is increased without increasing the sum of parasitic inductances in the main circuit and negative potential driving of the gate of the low-side MOSFET can be performed and a self turn-on phenomenon can be prevented without adding any member and changing drive system.

REFERENCES:
patent: 5805434 (1998-09-01), Vinciarelli et al.
patent: 6603291 (2003-08-01), Wheeler et al.
patent: 6639295 (2003-10-01), Majumdar et al.
patent: 2005/0194951 (2005-09-01), Mehas et al.
patent: 2002-290224 (2002-10-01), None
patent: 2004-015974 (2004-01-01), None
patent: 2004-342735 (2004-12-01), None
Maxim Integrated Products. “Layout Considerations for Non-Isolated DC-DC Converters”. Application Note 735. Mar. 1, 2001. Web Site: http://pdfserv.maxim-ic.com/en/an/AN735.pdf.
“Complementary MOSFET Driver and Synchronous Half-Bridge Switch,” INTERSIL Data Sheet—Feb. 2003—FN9082.2 [ISL6571] (11 pages); in English. [Best copy].

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